{"answers":{"affected":"3 open source packages ship an affected version, including github.com/siyuan-note/siyuan/kernel.","exploited":"There is no known exploitation of CVE-2026-82234 in the wild and no public exploit code.","fix":"Upgrade github.com/siyuan-note/siyuan/kernel to 0.0.0-20260813142806-dd2778b70d02 or later.","what":"CVE-2026-82234 is a high-severity server-side request forgery vulnerability in siyuan-note siyuan, published on 28 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-82234 and fix it if it is affected.\n\nWhat it is: CVE-2026-82234 is a high-severity server-side request forgery vulnerability in siyuan-note siyuan, published on 28 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-82234 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/siyuan-note/siyuan/kernel (Go): affected all versions; fixed in 0.0.0-20260813142806-dd2778b70d02\n- github.com/siyuan-note/siyuan/kernel (Go): affected all versions; fixed in 0.0.0-20260813142806-dd2778b70d02\n- github.com/siyuan-note/siyuan/kernel (Go): affected all versions; fixed in 0.0.0-20260813142806-dd2778b70d02\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-82234/ (Markdown: https://insights.sbomify.com/CVE-2026-82234/index.md)","id":"CVE-2026-82234","markdown":"https://insights.sbomify.com/CVE-2026-82234/index.md","name":"CVE-2026-82234","record":{"aliases":["GHSA-g42r-m263-958h","GHSA-x8gv-g2g3-65fj","GO-2026-6657"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"SiYuan note-taking app","requires_auth":"none","summary":"Attackers can exploit DNS rebinding in SiYuan's agent tools to bypass SSRF protections and access internal services or cloud metadata.","user_interaction":"required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.4,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"SiYuan versions before v3.8.1 contain a server-side request forgery vulnerability in the http_request and web_fetch agent tools that perform DNS resolution only at guard time without validating the connect-time resolution. Attackers can use DNS rebinding to answer the guard resolution with a public IP and the connect resolution with a private or metadata IP, bypassing the SSRF defense to access cloud instance metadata and internal services.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"SiYuan before v3.8.1 SSRF via DNS-Rebinding TOCTOU","id":"CVE-2026-82234","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"ssrf","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"filebrowser through 2.63.23 Denial of Service via named pipes","id":"CVE-2026-82235"},"packages":[{"ecosystem":"Go","fixed":["0.0.0-20260813142806-dd2778b70d02"],"introduced":["0"],"last_affected":[],"package":"github.com/siyuan-note/siyuan/kernel","purl":null,"source":"GHSA-x8gv-g2g3-65fj"},{"ecosystem":"Go","fixed":["0.0.0-20260813142806-dd2778b70d02"],"introduced":["0"],"last_affected":[],"package":"github.com/siyuan-note/siyuan/kernel","purl":"pkg:golang/github.com/siyuan-note/siyuan/kernel","source":"GHSA-x8gv-g2g3-65fj"},{"ecosystem":"Go","fixed":["0.0.0-20260813142806-dd2778b70d02"],"introduced":["0"],"last_affected":[],"package":"github.com/siyuan-note/siyuan/kernel","purl":"pkg:golang/github.com/siyuan-note/siyuan/kernel","source":"GO-2026-6657"}],"prev":{"headline":"SiYuan before v3.8.1 Path Traversal via asset.upload","id":"CVE-2026-82233"},"products":["siyuan"],"published":"2026-08-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-28","vendors":["siyuan-note"]},"summary":"Attackers can exploit DNS rebinding in SiYuan's agent tools to bypass SSRF protections and access internal services or cloud metadata.","url":"https://insights.sbomify.com/CVE-2026-82234/"}